The Peptide CommonsEst. May 2024
Independent. We sell nothing and are affiliated with no manufacturer or pharmacy. Every moderation action is logged in public
Practice · Interactions

Delayed gastric emptying and oral medication absorption: which drugs matter — one year on

Solved Closed
Solved by sa.vogel in post #3
post #2 is right about the mechanism and I think understates the practical bit. Supplements and herbs: many have no established interaction. Some do. If you are taking something unusual, checking a reference (like a pharmacist) is more useful than guessing from forum discussion.

Jump to the accepted answer →

MA
mi.almeidaTL2 Moderator20 Apr 2026#1

On the subject in the title: Delayed gastric emptying and oral medication absorption: which drugs matter — one year on Working notes rather than a conclusion.

I have read the maintained page on this and I still have a gap, so I am asking rather than guessing.

Context: retatrutide, 21 weeks in, currently at a dose I reached by the standard four-week steps. Everything below is my own record rather than anything a clinician told me.

The specific question is the one in the title. What I have already checked: the labelling summary on the relevant documentation page, the two most-linked topics in this subcategory, and my own notes from the last 9 weeks. What I could not find is whether the answer changes at higher doses or whether it is the same arithmetic throughout.

If the answer is "it depends", I would rather know what it depends on than be given a number.

41 likes 3mo
K
KTurkingtonTL3Regular1 May 2026#2

SGLT2 inhibitors: frequently co-administered and relevant to renal and cardiovascular discussion, not to interactions. There is no pharmacokinetic interaction of concern.

0 likes 3mo
SV
sa.vogelTL2 Moderator Solution10 May 2026#3

post #2 is right about the mechanism and I think understates the practical bit.

Supplements and herbs: many have no established interaction. Some do. If you are taking something unusual, checking a reference (like a pharmacist) is more useful than guessing from forum discussion.

8 likes 3mo
CD
cannula_driftTL3Regular18 May 2026#4
sa.vogel, post #3: post #2 is right about the mechanism and I think understates the practical bit. Supplements and herbs: many have no established interaction. Some do. If you are taking something unusual, checking a reference (like a pharmacist) is more useful than guessing from forum discussion. Go to post

Alcohol: no absolute contraindication but it raises gastrointestinal irritation risk and this drug class already does that. The conservative position during titration is to limit it.

6 likes in reply to #3 2mo
This topic was closed 30 days after the last reply. Closing is automatic for quiet topics so that a settled answer does not collect new questions underneath it. If you have a follow-up, open a new topic and link back to this one — that keeps both readable and gives your question its own title.
Moved from Reconstitution by KLindqvist. Category placement is not obvious from outside and getting it wrong is expected. This topic will get better answers here. The move is recorded in the public log citing R7.

Suggested topics

TopicParticipantsRepliesViewsActivity
Follow-up: Oral contraceptives and delayed emptying: what the data shows
Oral contraceptives and delayed emptying: what the data shows — setting out what I have, and where I think it stops being reliable. Reporting something rather than asking about it, in case the pattern is…
KMPEHBMSRL+31 35 13k 18mo
Follow-up: Reading an interaction checker output critically
Reading an interaction checker output critically — setting out what I have, and where I think it stops being reliable. I have read the maintained page on this and I still have a gap, so I am asking rather…
MNWVSGSR+62 66 13k 2d
Follow-up: Levothyroxine timing: a real interaction with a simple fix
On the subject in the title: Levothyroxine timing: a real interaction with a simple fix Working notes rather than a conclusion. Reporting something rather than asking about it, in case the pattern is useful…
MSPMRSTNS+2 6 8.1k 4mo
A widely repeated interaction claim that turns out to be unsupported — what changed since
A widely repeated interaction claim that turns out to be unsupported — what changed since Writing it up because I had to work it out twice and would rather nobody else did. I have read the maintained page on…
GVANGAKAK+89 94 5.9k 2h
Insulin combinations and hypoglycaemia risk
On the subject in the title: Insulin combinations and hypoglycaemia risk Working notes rather than a conclusion. Practical question with the units stated, because I have seen how quickly these go wrong…
VBDTRGCSMS+18 22 7.8k 13mo

Related topics — sharing the tags needs a source, delayed gastric emptying, hypoglycaemia

TopicParticipantsRepliesViewsActivity
Stability of BPC-157 in solution: what has been measured — one year on
On the subject in the title: Stability of BPC-157 in solution: what has been measured — one year on Working notes rather than a conclusion. Comparing STEP 2 ( Lancet , 2021) with STEP 1 ( N Engl J Med , 2021)…
KFNASCPWVB+84 98 7.8k 18h
Revisiting: Early satiety becoming a problem rather than a benefit
On the subject in the title: Revisiting: Early satiety becoming a problem rather than a benefit Working notes rather than a conclusion. A question about technique rather than about dose. I have been doing the…
YRZOHS 2 14k 12mo
Injection-site reactions: describing them precisely enough to be useful
Injection-site reactions: describing them precisely enough to be useful Writing it up because I had to work it out twice and would rather nobody else did. Reporting something rather than asking about it, in…
HNIBPSMMM+81 86 3.6k 19mo
Sulfonylureas: the interaction most worth taking seriously — what changed since
On the subject in the title: Sulfonylureas: the interaction most worth taking seriously — what changed since Working notes rather than a conclusion. I have read the maintained page on this and I still have a…
TWMDNSNGSD+3 7 35k 1d
Severe gastroparesis and why this class is a poor fit
On the subject in the title: Severe gastroparesis and why this class is a poor fit Working notes rather than a conclusion. Asking about a population rather than about a person. The published trials in this…
RJSTWTB 3 62k 13mo